package com.hedl.practice.diyJava;

public class JavaAndPackingClass {
    public static void main(String[] args) {
        int i =100;

        Integer n1 = new Integer(i);
        System.out.println(n1);
        Integer n2 = Integer.valueOf(i);
        System.out.println(n2);
        Integer n3 = Integer.valueOf("100");
        System.out.println(n3);
    }
}
